This 24-year-old entrepreneur lives on a sailboat because San Francisco is so expensive — take a look

• Entrepreneur Sarah Carter, 24, is the founder of a skincare line.• She also lives on a sailboat, because San Francisco is such an expensive place to rent or buy.• Here's a look at her floating home.

Like many young people living in the outrageously expensive San Francisco Bay Area, Sarah Carter found her first city dwelling on Craigslist. Instead of a tiny apartment, however, her new home was located in a marina.

Carter has lived in a sailboat for about a year now. She tells Business Insider the money she saved by not renting an apartment enabled her to launch a startup — a direct-to-consumer, organic skincare company called Salinity— and still do things like any other 24-year-old.

Take a look inside Carter's life at sea.

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At 24, Carter became a homeowner and a startup founder. "How many people can say that?" she says with a smile from her perch at the back of the sailboat.

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After moving to the San Francisco Bay Area in 2016, she found and purchased a sailboat on Craigslist in four days. She wanted to feel close to nature, "in the middle of it all."

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In November, Carter moved into a new sailboat (pictured) with her now-husband, Charlie. They met in the marina just a few months earlier and eloped.

Finding the right man was like finding her first boat, she says: "When you know, you know."

Carter declined to name the cost of her and Charlie's sailboat. In the Bay Area, boat owners pay between $250 and $1,111 a month to dock at a marina. Additional fees apply if the person wants to live aboard their vessel. Carter warns that the cost of upkeep can also be prohibitive.

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Today, she runs her startup, Salinity, from the 41-foot-long abode.

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It's far from your typical office. The day begins with a sunrise yoga practice on the deck.

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Around 8:30, she descends the stairs to prepare a breakfast smoothie in the kitchen.

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Carter brags that the boat's wind turbine generates enough power to run the blender and charge her cell phone at the same time. The couple also has plans to install solar panels.

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She then retreats to the back of the boat to begin her morning skincare routine.

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A few years ago, Carter became fed up with the lack of transparency and quality of ingredients in most beauty products. She decided she wouldn't put anything on her body that she wouldn't feel good about eating. That concept planted the seed for Salinity.

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Salinity's serums, moisturizers, and mists contain botanicals and minerals sourced from land and sea. She harvests the sea salt, a natural exfoliator, from the Pacific herself.

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Carter says while many skincare ingredients do come from the earth, the vast majority of products are pumped full of "chemically processed synthetic ingredients that are changed beyond the point of recognition. ... I am working to change this," she adds.

Salinity's products contain locally sourced ingredients that are never altered in a lab.

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Then the workday can begin. Carter tackles her email inbox first. Her cell phone plan includes an astronomical 20 GB of data a month so she can use the internet whenever.

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Her home serves as a constant source of inspiration. A homemade spice rack, made of glass tubes and corks, gives off a tantalizing scent that complements the salty sea air.

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Potted succulents hang in a vertical garden overhead.

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A giant seashell cups the engagement ring box that Charlie used in his proposal.

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Everything in the sailboat has its rightful place. Carter says the couple has to be diligent about putting things where they belong after use, otherwise the boat gets messy fast.

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Coffee mugs hang from the ceiling in order to maximize space.

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Carter convinced her husband to store cooking ingredients in Mason jars because she liked their look and eco-friendliness, though glass and sailboats don't go together well.

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When the water gets choppy, wire baskets stay in place with the help of simple latches.

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A drop-leaf table provides ample workspace and a cozy nook for reading.

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It's impossible to be anything but a minimalist when you live in such close quarters.

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Most days, Carter takes off mid-morning to work out of a small studio she rents in the Bay Area. There, she makes products by hand and packages them for shipment.

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Carter can afford the workspace in part because she doesn't live in San Francisco, the most expensive rental market in the US, according to real estate site Zumper.